@article{ref1,
title="The history of spectacles",
journal="Clinical and experimental optometry",
year="1931",
author="Lebensohn, James E.",
volume="14",
number="1",
pages="14-16",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0816-4622",
doi="10.1111/j.1444-0938.1931.tb00008.x",
url="http://dx.doi.org/10.1111/j.1444-0938.1931.tb00008.x"
}